EP0231232B1 - Lock - Google Patents

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Publication number
EP0231232B1
EP0231232B1 EP86904208A EP86904208A EP0231232B1 EP 0231232 B1 EP0231232 B1 EP 0231232B1 EP 86904208 A EP86904208 A EP 86904208A EP 86904208 A EP86904208 A EP 86904208A EP 0231232 B1 EP0231232 B1 EP 0231232B1
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EP
European Patent Office
Prior art keywords
plates
key
fact
lock
lock according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86904208A
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German (de)
French (fr)
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EP0231232A1 (en
Inventor
Michel Marie Chateau
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Individual
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Individual
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Publication date
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Priority to AT86904208T priority Critical patent/ATE39151T1/en
Publication of EP0231232A1 publication Critical patent/EP0231232A1/en
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Publication of EP0231232B1 publication Critical patent/EP0231232B1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
    • E05B29/0006—Other locks than cylinder locks with plate tumblers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/752—Sliding tumblers
    • Y10T70/7525—Longitudinal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7757—Push or pull key operation

Definitions

  • the invention relates to a lock comprising a control member for a bolt and a mechanism for actuating this member using a key carrying a code, by means of a set of identification of code comprising lamellas of substantially rectangular general shape, of the same dimensions, juxtaposed parallel with a determined pitch and movable in sliding in their longitudinal direction, each of these lamellas comprising, on a substantially rectilinear longitudinal side, a notch notched in one of several locations determined along this side, the notched sides of all the lamellae being arranged substantially in the same plane perpendicular to the planes of the lamellae, so that, in these notches brought into alignment by action of the key on the lamellae from their rest position, can engage, by a rectilinear drive edge which it comprises, a member for coupling the slats to the member for controlling the p even, this coupling member being able to transmit to said control member the movement printed with the key.
  • a rectilinear drive edge which it
  • the object of the invention is to improve a lock of this type in order to make it particularly difficult to breach.
  • the coupling member is a doubly mobile probe, parallel to the sliding direction of the lamellae and approximately perpendicular to the plane of the notched sides of the lamellae, this latter mobility affecting at least the drive edge which it comprises, which, being pressed against all the notched sides of the strips, is capable of engaging in the notches as soon as they are aligned and then coupling the control member of the bolts to all of the slats, so that, when it is inserted into the lock, the key drives the slats which slide first of all in a positioning stroke where their notches are aligned if the key is adapted to the lock, then in a complementary stroke where, if the probe has been able to come into engagement by its drive edge in the aligned notches of the lamellae, these drive, via the probe, the control member of the next bolt the direction of e sliding of the slats, in a direction tending to put the bolt in the open position, while a means for
  • Stop means should be provided to prevent the probe from moving in the sliding direction of the slats until its drive edge is engaged in the aligned notches of the slats.
  • the probe remains immobilized without being able to drive the control member of the bolt until the alignment of said notches, which can only be obtained by means of a key carrying the correct coding.
  • the movement of the feeler approximately perpendicular to the plane of the notched sides of the lamellae consists of a rocking movement around an articulation axis oriented parallel to this plane and perpendicular to the sliding direction. lamellae, and movable in this direction.
  • the axis of articulation of the feeler can be defined by a pair of lateral ears which it comprises and which are engaged in a pair of slots made in fixed walls of the lock in the sliding direction of the slats, the ends of these slots determining the extreme positions of the probe in its movements in this direction.
  • the probe preferably comprises a second pair of lateral ears situated in the vicinity of its drive edge and engaged in a second pair of slots made in said fixed walls, each of these latter slots comprising a first part extending parallel to the direction of sliding of the slats and a second part, relatively short and oriented perpendicular to this direction, the corresponding ear of the second pair of the probe being in this second part when the latter bears on the slats while they are at rest and that their notches are not aligned, which prevents the probe from moving.
  • a lock according to the invention does not lend itself to probing maneuvers in order to discover the coded combination that comprises all of the lamellae. Indeed, these do not prevent the introduction into the lock of an incorrect key or any tool: they always slide, but then without driving the probe.
  • the lock can also be fitted with an alarm device, suitable for detecting and signaling such operations, which compares the movement of the control member of the bolt, or of the bolt itself, and that of the slats and is triggered in the event that said member or the bolt is not moved during the complementary stroke thereof, which occurs as soon as the object introduced into the lock does not align the notches of the slats.
  • This alarm device implements, for example, a switch which is fixed to the feeler or to the control member of the bolt and can be actuated by any of the slats during said complementary stroke, for example by means of a movable crossbar, parallel to the plane of the notched sides of the slats and perpendicular to the sliding direction of the latter, which can move in translation in this direction under the thrust of the slats against a restoring force elastic; when removing the key, said bar also ensures the return of the slats to the rest position.
  • the driving-in movement of the latter may be hampered by inadvertent catching of the notches of one or some of the strips on the probe drive edge in the event that this edge is affected by a slight deformation or a small offset from its theoretical rest configuration, so that the false key would fail to trigger the alarm device which is provided the lock, it should be provided that the edge of the notch of each strip by which the drive edge of the probe is liable to be attacked is connected by a bevel to the longitudinal side of the strip in which the notch is formed.
  • the lock according to the invention is particularly advantageous when it is designed to operate using a flat key, comprising a front edge provided with cutouts which reveal successive teeth and hollows therein according to a determined coding combination ; such a key, inserted into the lock, is capable of selectively pushing, by said front edge, the strips of the identification assembly and of positioning them with their notches aligned, then of causing them to execute their complementary stroke.
  • the cutouts in the front edge of the key determine a binary coding there, each strip having its notch located in one of two locations determined along its length.
  • a lock according to the invention can be designed so that the key directly attacks the strips of the identification assembly, in their longitudinal sliding direction.
  • a set of pivoting pieces of angle gear there may be arranged, upstream of the strips of the identification assembly, a set of pivoting pieces of angle gear, by means of which the key can actuate the slats being introduced into the lock in a direction different from the longitudinal direction of the slats.
  • the corner gear parts are mounted freely in juxtaposition on a common transverse pivot axis; each of these parts, associated with a respective strip, is formed by a plate located in the plane of this strip and comprising a first substantially radial arm capable of pushing the corresponding strip and thus actuating it in translation, and a second substantially radial arm, making an angle with the first arm and capable of being attacked by the key inserted into the lock in said different direction.
  • Two directions for inserting the key are thus offered, depending on whether the key attacks the angle gear parts by their first arm (being then introduced in the same direction as if it directly attacked the slats), or by their second arm.
  • Two directions form an angle between them which is a function of the angle of the first and second arms of the angle gear parts.
  • these arms can be arranged so that the two directions of insertion of the key are substantially perpendicular.
  • these two directions may correspond respectively to the introduction of the key from the inside and from the outside of the room defended by the lock.
  • the coding notch that each lamella has on its longitudinal side facing the probe is located near its end opposite to that of attack by the key, so that the probe, whose drive edge is located in the vicinity of the notches of the slats, covers the latter only over a short length. If, moreover, it is provided that the second part of each of the slits of said second pair of slits is continued by a third part, of short length, oriented parallel to the first part, it is possible to cause the probe to uncover and release completely the strips by temporarily placing it in an erasing position where it is retained by its second pair of ears engaged in said third part of the aforementioned slots.
  • a stopper When a stopper is associated with each strip which prevents it from moving in its plane perpendicular to its longitudinal direction, if this stopper is disposed near the leading end of the strip by the key, it does not not oppose the withdrawal of the considered lamella, after erasing the probe, in order to change the code entered in the identification assembly of the lock.
  • Such a change can be made either by exchanging at least one lamella with a lamella carrying an otherwise positioned notch, or, when each lamella has a coding notch on each of its two longitudinal sides, these two notches having however a positioning there different, by simply reversing in its plane at least one strip.
  • the abovementioned stop ensuring the maintenance of each strip, can be constituted by a protuberance of the corner gear provided in association with the strip.
  • the lock shown in FIG. 1 comprises a housing 1 through which a rectilinear rod 2 can slide in translation, under the action of a flat key 3 introduced into the housing by an entry slot 4, this key acting on the rod 2 by means of an internal mechanism which will be described later.
  • One end 2a of the rod 2 constitutes the bolt of the lock, which can be engaged in a striker 5 conjugate (FIG. 2a) or be withdrawn therefrom (FIG. 2c).
  • the bolt 2a is removed from the keeper 5 by inserting the key 3, while its return to posi tion of condemnation in the keeper 5 is obtained using an actuation means not shown, such as a spring or a manual rotary knob carrying an eccentric capable of pushing the rod 2 in the direction of the keeper 5.
  • the bolt can also be constituted by a piece independent of the rod 2, but coupled to the latter so as to be controlled by said rod.
  • the mechanism of the lock comprises a set of oblong strips 7, which are movable and guided so as to be able to slide longitudinally, in the direction 6 of translation of the rod 2, between guide plates 8 juxtaposed parallel to each other with interposition spacers 9 slightly thicker than the strips 7.
  • the plates 8 and the spacers 9 are assembled on a transverse spindle 30 which passes through them all.
  • the lamellae 7 are identical in their generally rectangular shape, and each offer a rectilinear side 7a freely flush between the plates 8 in a common plane parallel to the direction 6. Each of these sides 7a is notched with a notch 10 of triangular shape, to which one of two determined positions is given along the length of the strip, so that the series of notches 10 that the set of strips 7 comprises is arranged according to a binary code defined by the respective positions of the successive notches when the slats are in rest positions ( Figure 1).
  • a feeler 11 consisting of a piece of profiled sheet metal which can pivot around an axis defined by two lateral ears 11 a engaged in slots 12 which extend in two opposite walls of a chassis 31 inside the housing 1 parallel to the direction 6, and offering, on an edge 11 c situated on the side opposite the aforementioned pivot axis, a rectilinear edge 11 b applied against the sides 7a with a notch 10 of the strips 7 by a low-power leaf spring 13 (FIGS. 2a to 2d).
  • the edge 11b of the probe 11 is, like its pivot axis, parallel to the plane of the sides 7a of the strips 7 and perpendicular to the direction 6 of movement of the rod 2 (and of the strips 7).
  • the key insertion slot 4 is located opposite the aligned ends 7b of the juxtaposed plates 7. It extends inside the assembly formed by these plates by a series of slots 14 made in the guide plates 8, these slots receiving the key 3 introduced into the lock by the entry slot 4 and, more precisely , the front edge 3a of the key, which comprises a coding represented by cutouts showing hollows 15 and teeth 16 which follow one another according to a determined code.
  • the number of binary positions provided on the coded edge 3a is chosen so as to obtain a very large number of possible combinations; for example, 32 bit positions provide several billion different combinations.
  • each of the strips 7 moves longitudinally in the direction 6 by a determined quantity, respectively large or small, depending on whether it is attacked by a tooth 16 or by a hollow 15 of the front edge 3a of the key.
  • the key code corresponds to the positioning code of the notches 10, they are brought into alignment and can then receive the rectilinear edge 11b of the feeler 11, which engages therein under the action of the spring at blade 13 ( Figure 2b).
  • the rod 2 is coupled in translation to the probe by a stirrup 18 which is welded and offers at its ends buttonholes 19 through which pass pins 20 integral with the probe 11. This mode of coupling to the rod 2 does not hinder the movements of tilting of the probe.
  • the probe 11 when the probe 11 is driven in translation by the aligned notches 10 of the strips 7, it in turn drives the rod 2 to a limit position ( Figure 2c) where the bolt 2a which terminates it has left the strike plate, unlocking the element such as a door on which the lock is mounted.
  • the strips 7, or at least those which correspond to teeth 16 of the key 3 repel a large tilting pallet 21, embracing the whole set of strips 7, which pivots around a fixed axis 22, perpendicular to the plane of the slats 7, against the force of a return spring 23. It is thanks to these springs that the pallet 21 returns to the initial rest position (FIG.
  • the edge 11b of the probe then escaping from the notches 10 by going up along one of their flanks, to which a certain inclination is given for this purpose, the other flank being perpendicular to the direction 6.
  • the edge 11 c carrying the edge 11 b offers, relative to the plane of the notched sides 7a of the strips 7, an obliquity suitable for promoting the escape of the probe. 11 out of the notches 10 in the return to rest phase of the strips.
  • the lock shown in FIG. 3 comprises, like the lock in FIG. 1, in a housing 1, a set of identification strips 7 in the form of an elongated rectangle, comprising, on their longitudinal side 7a facing the movable probe 11, a coding notch 10.
  • Each of the notches can occupy one or the other of two predetermined positions along the length of the side 7a, so that the series of notches 10 is arranged according to a binary code specific to the lock when the slats 7 are in the rest position.
  • the feeler 11 again has a pair of ears 11a engaged in slots 12 made, parallel to the longitudinal direction 6 of the lamellae 7, in two parallel walls 31 inside the housing 1.
  • the strips 7 of this embodiment have a length reduced almost by half: they only extend a little beyond their notch 10.
  • the spacers 9 have been removed, the strips 7 now sliding directly on the bottom 1a of the housing 1, and the therapeutic plates 8 give way to oblong spacers 108 whose pitch is determined by interlocking, at their ends - each provided with a notch - in the notches of racks 132, 133 fixed transversely between the walls 31.
  • the parts 134 are identical angle reference parts, independently mounted on a common pivot axis 135; they are flat, of thickness substantially equal to that of the lamellae 7, and to each of the latter is associated a part 134 situated in the same plane.
  • the pitch of the pieces 134 is maintained equal to that of the lamellae 7 on the one hand by spacers 136 fitted into the notches of a rack 137 and crossed by the axis 135, and on the other hand by the spacers 108 whose ends neighbors of the rack 132 pass between arms 134a belonging to the pieces 134, by which these attack the ends 7b of the strips 7.
  • Each piece 134 has a second arm 134b oriented substantially at right angles to the arm 134a and provided with a notch 134c for receiving the key.
  • tilting pallet 21 for resting the blades 7 at rest is replaced by a transverse bar 121, which can move in translation in the direction 6 in the first parts 138a of guide slots 138 formed in the walls 31.
  • the bar 121 is biased towards the set of blades 7 by means of a pivoting stirrup 139 with elastic return.
  • This stirrup comprises a transverse rod 139a engaged in notches 140 of the walls 31 and folded at its ends to form arms 139b which can pivot in intervals 142 separating the walls 31 and the housing 1, around an axis materialized by the rod 139a, under the action of at least one spring 141 wound around one end of the rod 139 and attached by radial ends respectively to the arm 139b and to the wall 31 which correspond to it.
  • the coded edges of the keys 3 systematically include a tooth 16 in the region of each of their ends.
  • the probe 11 has, at the ends of its drive edge 11 b by which it can come into engagement with the notches 10 aligned with the strips 7, a second pair of lateral ears 1 l which are respectively engaged in the fenters 138.
  • the first part 138a of these, long and parallel to direction 6, is extended at its end close to the set of blades 7, by a second shorter part 138b, oriented perpendicularly, then by a third part 138c, even more short, parallel to the first part 138a (so that each slot 138 has the shape of a J).
  • edge 11b of the feeler 11 is kept applied against the sides 7a of the set of lamellae 7 by a pair of leaf springs 113 located in the intervals 142, fixed to the ears 11 c and bearing on the ends of the axis 135 which overflow in these intervals.
  • the key 3 or, as in the case of the lock of Figure 1, parallel to the direction 6, the key then acting on the slats 7 through the arms 134a of the parts 134 , or perpendicular to direction 6, the key then acting through the arms 134b and 134a of the parts 134.
  • the latter pivot around the axis 135, by running more or less large angles depending on whether each is attacked by a tooth or by a hollow in the coded edge 3a of the key 3, so that the code of the key is transmitted to the set of blades 7 by the set of pivoting parts 134.
  • the latter In the first case of introduction of the key, the latter is guided between the spacers 108 and nozzles 136a which the spacers 136 have near the corresponding entry slot 4 of the housing 1 of the lock.
  • the key 3 In the second case where the key 3 is introduced through a second slot 144 made in the cover 1b of the housing 1, it is the notches 134c of the arms 134b which guide the key during the pivoting movement of the parts 134.
  • the slot 144 is accessible from the outside on the premises defended by the lock, while slot 4 is accessible from the inside.
  • the operation of the lock of the present example is the same as that of the lock of FIG. 1.
  • the notches 10 of the strips 7, the bar 121 being first of all only pushed back by the strips 7 corresponding to the teeth of the key.
  • the probe 11 then switches over in the aligned notches, then is also driven in translation by the lamellae 7 completing their complementary travel, guided by its first pair of ears 11a in the slots 12 and by its second pair of ears 11c in the first part 138a of the slots 138.
  • the feeler then pushes the control member of the bolt, which is constituted by a sliding rod 102 coupled to the feeler by simple engagement.
  • the key inserted into the lock does not have the correct code, pressing it in only causes displacement of the bar 121, the probe remaining stationary, retained by its ears 11 c in the second part 138b of the slots 138.
  • the bar 121 meets a flexible rod 127 which actuates, via an articulated pallet 143, a mini-switch 126 fixed on the probe 11, which triggers an alarm .
  • the edge of the notches 10 by which these are capable of driving the probe 11 during their complementary stroke is provided with a small chamfer 1 Oa which ensures unimpeded sliding, under the pressure of a false key, of each lamella 7 relative to the probe 11, blocked by its ears 11 c in the second part 138b of the slots 138, even if the drive edge 11b of the probe was somewhat deformed or offset locally to the point of slightly penetrating one or more several notches 10 while all the notches are not aligned.
  • This provision ensures that no false key will be stopped unexpectedly in its driving stroke, and will therefore certainly cause actuation of the alarm mini-switch 126.
  • the slats 7 have a coding notch not only on their longitudinal side 7a facing the probe 11, but on their opposite side 7a 'where a second notch 10' is provided.
  • the notches 10 and 10 ' are respectively located in the vicinity of the ends of each lamella 7, but at a different distance, so that one corresponds to a binary 1 and the other to a binary 0.
  • One or the other of the notches 10, 10 ′ of each strip can be put into service at will by simply turning the strip over in its plane.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Lock comprising an assembly of identification lamellas (7) provided with coding notches (10). A flat key (3) having a coded side (3a) pushes the lamellas (7) up to the alignment of their notches (10) wherein a sensing element (11) is then engaged by rectilinear edge (11b). The lamellas (7) which continue to slide under the thrust of the key (3) drive through the pick-off element (11) a bolt control member (2). An alarm device (21, 26, 27) signals any insertion of a key which does not correspond.

Description

L'invention se rapporte à une serrure comprenant un organe de commande d'un pêne et un mécanisme d'actionnement de cet organe à l'aide d'une clé portant un code, par l'intermédiaire d'un ensemble d'identification de code comprenant des lamelles de forme générale sensiblement rectangulaire, de mêmes dimensions, juxtaposées parallèlement avec un pas déterminé et mobiles en coulissement suivant leur direction longitudinale, chacune de ces lamelles comportant, sur un côté longitudinal sensiblement rectiligne, une encoche entaillée en l'un de plusieurs emplacements déterminés le long de ce côté, les côtés à encoche de toutes les lamelles étant disposés sensiblement dans un même plan perpendiculaire aux plans des lamelles, de telle façon que, dans ces encoches amenées en alignement par action de la clé sur les lamelles à partir de leur position de repos, peut venir en prise, par une arête rectiligne d'entraînement qu'il comporte, un organe de couplage des lamelles à l'organe de commande du pêne, cet organe de couplage étant apte à transmettre audit organe de commande le mouvement imprimé à la clé. Un tel dispositif est connu de FR-A-597 736.The invention relates to a lock comprising a control member for a bolt and a mechanism for actuating this member using a key carrying a code, by means of a set of identification of code comprising lamellas of substantially rectangular general shape, of the same dimensions, juxtaposed parallel with a determined pitch and movable in sliding in their longitudinal direction, each of these lamellas comprising, on a substantially rectilinear longitudinal side, a notch notched in one of several locations determined along this side, the notched sides of all the lamellae being arranged substantially in the same plane perpendicular to the planes of the lamellae, so that, in these notches brought into alignment by action of the key on the lamellae from their rest position, can engage, by a rectilinear drive edge which it comprises, a member for coupling the slats to the member for controlling the p even, this coupling member being able to transmit to said control member the movement printed with the key. Such a device is known from FR-A-597,736.

L'invention a pour but de perfectionner une serrure de ce type afin de la rendre particulièrement difficile à violer.The object of the invention is to improve a lock of this type in order to make it particularly difficult to breach.

A cet effet, selon l'invention, l'organe de couplage est un palpeur doublement mobile, parallèlement à la direction de coulissement des lamelles et à peu près perpendiculairement au plan des côtés à encoche des lamelles, cette dernière mobilité affectant au moins l'arête d'entraînement qu'il comporte, laquelle, étant pressée contre l'ensemble des côtés à encoche des lamelles, est susceptible de s'engager dans les encoches dès qu'elles sont alignées et d'accoupler alors l'organe de commande du pêne à l'ensemble des lamelles, de sorte que, lors de son introduction dans la serrure, la clé entraîne les lamelles qui coulissenmt tout d'abord dans une course de positionnement où leurs encoches viennent s'aligner si la clé est adaptée à la serrure, puis dans une course complémentaire où, si le palpeur a pu venir en prise par son arête d'entraînement dans les encoches alignées des lamelles, celles-ci entraînent, par l'intermédiaire du palpeur, l'organe de commande du pêne suivant la direction de coulissement des lamelles, dans un sens tendant à mettre le pêne en position d'ouverture, tandis qu'un moyen de rappel de l'organe de commande du pêne en sens inverse est prévu pour le ramener en position de fermeture, ce moyen ne permettant pas, de préférence, de déplacer ledit organe dans le sens de l'ouverture.To this end, according to the invention, the coupling member is a doubly mobile probe, parallel to the sliding direction of the lamellae and approximately perpendicular to the plane of the notched sides of the lamellae, this latter mobility affecting at least the drive edge which it comprises, which, being pressed against all the notched sides of the strips, is capable of engaging in the notches as soon as they are aligned and then coupling the control member of the bolts to all of the slats, so that, when it is inserted into the lock, the key drives the slats which slide first of all in a positioning stroke where their notches are aligned if the key is adapted to the lock, then in a complementary stroke where, if the probe has been able to come into engagement by its drive edge in the aligned notches of the lamellae, these drive, via the probe, the control member of the next bolt the direction of e sliding of the slats, in a direction tending to put the bolt in the open position, while a means for returning the control member of the bolt in the opposite direction is provided to return it to the closed position, this means does not allowing, preferably, to move said member in the direction of opening.

Il convient de prévoir des moyens de butée pour interdire au palpeur de se déplacer suivant la direction de coulissement des lamelles tant que son arête d'entraînement n'est pas venue en prise dans les encoches alignées des lamelles. Ainsi, le palpeur reste immobilisé sans pouvoir entraîner l'organe de commande du pêne jusqu'à la mise en alignement desdites encoches, qui ne peut être obtenue qu'au moyen d'une clé portant le codage correct.Stop means should be provided to prevent the probe from moving in the sliding direction of the slats until its drive edge is engaged in the aligned notches of the slats. Thus, the probe remains immobilized without being able to drive the control member of the bolt until the alignment of said notches, which can only be obtained by means of a key carrying the correct coding.

Dans une forme d'exécution avantageuse, le mouvement du palpeur à peu près perpendiculairement au plan des côtés à encoche des lamelles consiste en un mouvement de bascule autour d'un axe d'articulation orienté parallèlement à ce plan et perpendiculairement à la direction de coulissement des lamelles, et déplaçable suivant cette direction.In an advantageous embodiment, the movement of the feeler approximately perpendicular to the plane of the notched sides of the lamellae consists of a rocking movement around an articulation axis oriented parallel to this plane and perpendicular to the sliding direction. lamellae, and movable in this direction.

Plus particulièrement, l'axe d'articulation du palpeur peut être défini par une paire d'oreilles latérales qu'il comporte et qui sont engagées dans une paire de fentes pratiquées dans des parois fixes de la serrure suivant la direction de coulissement des lamelles, les extrémités de ces fentes déterminant les positions extrêmes du palpeur dans ses déplacements suivant cette direction.More particularly, the axis of articulation of the feeler can be defined by a pair of lateral ears which it comprises and which are engaged in a pair of slots made in fixed walls of the lock in the sliding direction of the slats, the ends of these slots determining the extreme positions of the probe in its movements in this direction.

Le palpeur comporte de préférence une deuxième paire d'oreilles latérales situées au voisinage de son arête d'entraînement et engagées dans une deuxième paire de fentes pratiquées dans lesdites parois fixes, chacune de ces dernières fentes comprenant une première partie s'étendant parallèlement à la direction de coulissement des lamelles et une deuxième partie, relativement courte et orientée perpendiculairement à cette direction, l'oreille correspondante de la deuxième paire du palpeur se trouvant dans cette deuxième partie lorsque ce dernier prend appui sur les lamelles alors qu'elles sont au repos et que leurs encoches ne sont pas alignées, ce qui empêche le palpeur de se déplacer.The probe preferably comprises a second pair of lateral ears situated in the vicinity of its drive edge and engaged in a second pair of slots made in said fixed walls, each of these latter slots comprising a first part extending parallel to the direction of sliding of the slats and a second part, relatively short and oriented perpendicular to this direction, the corresponding ear of the second pair of the probe being in this second part when the latter bears on the slats while they are at rest and that their notches are not aligned, which prevents the probe from moving.

Une serrure selon l'invention ne se prête pas à des manoeuvres de palpage en vue de découvrir la combinaison codée que comporte l'ensemble des lamelles. En effet, celles-ci ne s'opposent pas à l'introduction dans la serrure d'une clé erronée ou d'un outil quelconque: elles coulissent toujours, mais alors sans entraîner le palpeur. La serrure peut de plus être dotée d'un dispositif d'alarme, propre à détecter et à signaler de telles manoeuvres, qui compare le déplacement de l'organe de commande du pêne, ou du pêne lui-même, et celui des lamelles et se déclenche en cas de non déplacement dudit organe ou du pêne durant la course complémentaire de celles-ci, ce qui se produit dès que l'objet introduit dans la serrure ne réalise pas l'alignement des encoches des lamelles. Ce dispositif d'alarme met par exemple en oeuvre un interrupteur qui est fixé au palpeur ou à l'organe de commande du pêne et peut être actionné par l'une quelconque des lamelles durant ladite course complémentaire, par exemple par l'intermédiaire d'une barre transversale mobile, parallèle au plan des côtés à encoche des lamelles et perpendiculaire à la direction de coulissement de celles-ci, qui peut se déplacer en translation suivant cette direction sous la poussée des lamelles à l'encontre d'une force de rappel élastique; lors du retrait de la clé, ladite barre assure en outre le retour des lamelles en position de repos. Afin d'éviter que, dans l'hypothèse précédente de l'usage d'une fausse clé, le mouvement d'enfoncement de celle-ci puisse être entravé par accrochage intempestif des encoches de l'une ou de certaines des lamelles sur l'arête d'entraînement du palpeur au cas où cette arête serait affectée d'une légère déformation ou d'un petit décalage par rapport à sa configuration de repos théorique, de sorte que la fausse clé manquerait à déclencher le dispositif d'alarme dont est dotée la serrure, il convient de prévoir que le bord de l'encoche de chaque lamelle par lequel l'arête d'entraînement du palpeur est susceptible d'être attaquée se raccorde par un biseau au côté longitudinal de la lamelle dans lequel l'encoche est pratiquée.A lock according to the invention does not lend itself to probing maneuvers in order to discover the coded combination that comprises all of the lamellae. Indeed, these do not prevent the introduction into the lock of an incorrect key or any tool: they always slide, but then without driving the probe. The lock can also be fitted with an alarm device, suitable for detecting and signaling such operations, which compares the movement of the control member of the bolt, or of the bolt itself, and that of the slats and is triggered in the event that said member or the bolt is not moved during the complementary stroke thereof, which occurs as soon as the object introduced into the lock does not align the notches of the slats. This alarm device implements, for example, a switch which is fixed to the feeler or to the control member of the bolt and can be actuated by any of the slats during said complementary stroke, for example by means of a movable crossbar, parallel to the plane of the notched sides of the slats and perpendicular to the sliding direction of the latter, which can move in translation in this direction under the thrust of the slats against a restoring force elastic; when removing the key, said bar also ensures the return of the slats to the rest position. In order to avoid that, in the preceding hypothesis of the use of a false key, the driving-in movement of the latter may be hampered by inadvertent catching of the notches of one or some of the strips on the probe drive edge in the event that this edge is affected by a slight deformation or a small offset from its theoretical rest configuration, so that the false key would fail to trigger the alarm device which is provided the lock, it should be provided that the edge of the notch of each strip by which the drive edge of the probe is liable to be attacked is connected by a bevel to the longitudinal side of the strip in which the notch is formed.

La serrure selon l'invention est particulièrement avantageuse lorsqu'elle est conçue pour fonctionner à l'aide d'une clé plate, comportant un bord frontal doté de découpures qui y font apparaître des dents et des creux se succédant suivant une combinaison de codage déterminée; une telle clé, introduite dans la serrure, est susceptible de pousser sélectivement, par ledit bord frontal, les lamelles de l'ensemble d'identification et de les positionner avec leurs encoches alignées, puis de leur faire exécuter leur course complémentaire. Dans une forme d'exécution très simple, les découpures du bord frontal de la clé y déterminent un codage binaire, chaque lamelle ayant son encoche située en l'un de deux emplacements déterminés sur sa longueur.The lock according to the invention is particularly advantageous when it is designed to operate using a flat key, comprising a front edge provided with cutouts which reveal successive teeth and hollows therein according to a determined coding combination ; such a key, inserted into the lock, is capable of selectively pushing, by said front edge, the strips of the identification assembly and of positioning them with their notches aligned, then of causing them to execute their complementary stroke. In a very simple embodiment, the cutouts in the front edge of the key determine a binary coding there, each strip having its notch located in one of two locations determined along its length.

Une serrure selon l'invention peut être conçue de telle sorte que la clé attaque directement les lamelles de l'ensemble d'identification, suivant leur direction longitudinale de coulissement. Lorsqu'une autre direction d'introduction de la clé est souhaitable, on peut disposer, en amont des lamelles de l'ensemble d'identification, un ensemble de pièces pivotantes de renvoi d'angle, par l'intermédiaire desquelles la clé peut actionner les lamelles en étant introduite dans la serrure suivant une direction différente de la direction longitudinale des lamelles.A lock according to the invention can be designed so that the key directly attacks the strips of the identification assembly, in their longitudinal sliding direction. When another direction of insertion of the key is desirable, there may be arranged, upstream of the strips of the identification assembly, a set of pivoting pieces of angle gear, by means of which the key can actuate the slats being introduced into the lock in a direction different from the longitudinal direction of the slats.

Selon un développement avantageux de la serrure selon l'invention, les pièces de renvoi d'angle, toutes identiques, sont montées librement en juxtaposition sur un axe transversal commun de pivotement; chacune de ces pièces, associée à une lamelle respective, est formée d'une plaquette située dans le plan de cette lamelle et comportant un premier bras sensiblement radial, susceptible de pousser la lamelle correspondante et de l'actionner ainsi en translation, et un deuxième bras sensiblement radial, faisant un angle avec le premier bras et susceptible d'être attaqué par la clé introduite dans la serrure suivant ladite direction différente. Deux directions d'introduction de la clé sont ainsi offertes, selon que la clé attaque les pièces de renvoi d'angle par leur premier bras (étant alors introduite dans la même direction que si elle attaquait directement les lamelles), ou par leur deuxième bras. Des deux directions font entre elles un angle qui est fonction de l'angle des premier et deuxième bras des pièces de renvoi d'angle. En particulier, ces bras peuvent être agencés de façon que les deux directions d'introduction de la clé soient sensiblement perpendiculaires. En pratique, ces deux directions pourront correspondre respectivement à l'introduction de la clé du côté intérieur et du côté extérieur du local défendu par la serrure.According to an advantageous development of the lock according to the invention, the corner gear parts, all identical, are mounted freely in juxtaposition on a common transverse pivot axis; each of these parts, associated with a respective strip, is formed by a plate located in the plane of this strip and comprising a first substantially radial arm capable of pushing the corresponding strip and thus actuating it in translation, and a second substantially radial arm, making an angle with the first arm and capable of being attacked by the key inserted into the lock in said different direction. Two directions for inserting the key are thus offered, depending on whether the key attacks the angle gear parts by their first arm (being then introduced in the same direction as if it directly attacked the slats), or by their second arm. . Two directions form an angle between them which is a function of the angle of the first and second arms of the angle gear parts. In particular, these arms can be arranged so that the two directions of insertion of the key are substantially perpendicular. In practice, these two directions may correspond respectively to the introduction of the key from the inside and from the outside of the room defended by the lock.

Afin de maintenir les pièces de renvoi d'angle au pas d'espacement des lamelles, qui est égal à celui des dents et creux du bord codé de la clé, il convient d'interposer entre lesdites pièces des entretoises, qui sont engagées en au moins un point de leur pourtour dans les crans d'une pièce transversale en forme de crémaillère, le pas de ces crans étant égal au pas moyen des lamelles de l'ensemble d'identification. Ce dernier pas peut lui-même être défini de façon analogue par des entretoises d'espacement oblongues, engagées à leurs extrémités dans les crans de pièces transversales en forme de crémaillère.In order to keep the angle pieces at the spacing pitch of the lamellae, which is equal to that of the teeth and hollows of the coded edge of the key, it is necessary to interpose between said pieces spacers, which are engaged in at at least one point of their periphery in the notches of a transverse piece in the form of a rack, the pitch of these notches being equal to the mean pitch of the strips of the identification assembly. This last step can itself be defined in a similar manner by oblong spacers, engaged at their ends in the notches of transverse pieces in the form of a rack.

Avantageusement, l'encoche de codage que comporte chaque lamelle sur son côté longitudinal tourné vers le palpeur est située près de son extrémité opposée à celle d'attaque par la clé, de sorte que le palpeur, dont l'arête d'entraînement se trouve au voisinage des encoches des lamelles, ne recouvre ces dernières que sur une faible longueur. Si en outre on prévoit que la deuxième partie de chacune des fentes de ladite deuxième paire de fentes se continue par une troisième partie, de faible longueur, orientée parallèlement à la première partie, il est possible d'amener le palpeur à découvrir et à libérer complètement les lamélles en le plaçant provisoirement dans une position d'effacement où il est retenu par sa deuxième paire d'oreilles engagées dans ladite troisième partie des fentes précitées.Advantageously, the coding notch that each lamella has on its longitudinal side facing the probe is located near its end opposite to that of attack by the key, so that the probe, whose drive edge is located in the vicinity of the notches of the slats, covers the latter only over a short length. If, moreover, it is provided that the second part of each of the slits of said second pair of slits is continued by a third part, of short length, oriented parallel to the first part, it is possible to cause the probe to uncover and release completely the strips by temporarily placing it in an erasing position where it is retained by its second pair of ears engaged in said third part of the aforementioned slots.

Lorsqu'à chaque lamelle est associée une butée qui l'empêche de se déplacer dans son plan perpendiculairement à sa direction longitudinale, si cette butée est disposée à proximité de l'extrémité d'attaque de la lamelle par la clé, elle ne s'oppose pas au retrait de la lamelle considérée, après effacement du palpeur, en vue de changer le code inscrit dans l'ensemble d'identification de la serrure. Un tel changement peut être réalisé soit par échange d'au moins une lamelle avec une lamelle portant une encoche autrement positionnée, soit, lorsque chaque lamelle comporte une encoche de codage sur chacun de ses deux côtés longitudinaux, ces deux encoches y ayant toutefois un positionnement différent, par simple retournement dans son plan d'au moins une lamelle.When a stopper is associated with each strip which prevents it from moving in its plane perpendicular to its longitudinal direction, if this stopper is disposed near the leading end of the strip by the key, it does not not oppose the withdrawal of the considered lamella, after erasing the probe, in order to change the code entered in the identification assembly of the lock. Such a change can be made either by exchanging at least one lamella with a lamella carrying an otherwise positioned notch, or, when each lamella has a coding notch on each of its two longitudinal sides, these two notches having however a positioning there different, by simply reversing in its plane at least one strip.

La butée précitée, assurant le maintien de chaque lamelle, peut être constituée par une excroissance de la pièce de renvoi d'angle prévue en association avec la lamelle.The abovementioned stop, ensuring the maintenance of each strip, can be constituted by a protuberance of the corner gear provided in association with the strip.

D'autre particularités et avantages de l'invention ressortiront plus clairement de la description qui va suivre, en regard des dessins annexés, d'exemples de réalisation non limitatifs.

  • La figure 1 représente schématiquement, en perspective, une serrure selon l'invention, seules certaines parties de son boîtier étant montrées.
  • Les figures 2a à 2d représentent en coupe longitudinale la serrure de la figure 1 dans différentes situations de fonctionnement.
  • La figure 3 représente schématiquement, en perspective, une variante d'exécution de la serrure.
  • La figure 4 représente une coupe longitudinale de la serrure de la figure 3 en position de repos.
Other features and advantages of the invention will emerge more clearly from the description which follows, with reference to the appended drawings, of nonlimiting exemplary embodiments.
  • Figure 1 shows schematically, in perspective, a lock according to the invention, only certain parts of its housing being shown.
  • Figures 2a to 2d show in longitudinal section the lock of Figure 1 in different operating situations.
  • Figure 3 shows schematically, in perspective, an alternative embodiment of the lock.
  • Figure 4 shows a longitudinal section of the lock of Figure 3 in the rest position.

La serrure représentée à la figure 1 comprend un boîtier 1 à travers lequel peut coulisser en translation une tige rectiligne 2, sous l'action d'une clé plate 3 introduite dans le boîtier par une fente d'entrée 4, cette clé agissant sur la tige 2 par l'intermédiaire d'un mécanisme interne qui sera décrit plus loin. Une extrémité 2a de la tige 2 constitue le pêne de la serrure, qui peut être engagé dans une gâche 5 conjuguée (figure 2a) ou en être retiré (figure 2c). Le retrait du pêne 2a hors de la gâche 5 s'effectue par introduction de la clé 3, tandis que son rappel en position de condamnation dans la gâche 5 est obtenue à l'aide d'un moyen d'actionnement non représenté, tel qu'un ressort ou un bouton rotatif manuel portant un excentrique capable de repousser la tige 2 en direction de la gâche 5. Bien entendu, le pêne peut aussi être constitué par une pièce indépendante de la tige 2, mais couplée à cette dernière de façon à être commandée par ladite tige. On peut également prévoir une pièce intermédiaire entre le pêne et la tige 2, telle qu'un levier coudé, lorsque la direction d'actionnement du pêne est différente de la direction 6 de translation de la tige 2.The lock shown in FIG. 1 comprises a housing 1 through which a rectilinear rod 2 can slide in translation, under the action of a flat key 3 introduced into the housing by an entry slot 4, this key acting on the rod 2 by means of an internal mechanism which will be described later. One end 2a of the rod 2 constitutes the bolt of the lock, which can be engaged in a striker 5 conjugate (FIG. 2a) or be withdrawn therefrom (FIG. 2c). The bolt 2a is removed from the keeper 5 by inserting the key 3, while its return to posi tion of condemnation in the keeper 5 is obtained using an actuation means not shown, such as a spring or a manual rotary knob carrying an eccentric capable of pushing the rod 2 in the direction of the keeper 5. Good understood, the bolt can also be constituted by a piece independent of the rod 2, but coupled to the latter so as to be controlled by said rod. One can also provide an intermediate piece between the bolt and the rod 2, such as a bent lever, when the direction of actuation of the bolt is different from the direction 6 of translation of the rod 2.

Le mécanisme de la serrure comprend un ensemble de lamelles oblongues 7, qui sont mobiles et guidées de façon à pouvoir coulisser longitudinalement, suivant la direction 6 de translation de la tige 2, entre des plaquettes de guidage 8 juxtaposées parallèlement les unes aux autres avec interposition d'entretoises 9 légèrement plus épaisses que les lamelles 7. Les plaquettes 8 et les entretoises 9 sont assemblées sur une broche transversale 30 qui les traverse toutes.The mechanism of the lock comprises a set of oblong strips 7, which are movable and guided so as to be able to slide longitudinally, in the direction 6 of translation of the rod 2, between guide plates 8 juxtaposed parallel to each other with interposition spacers 9 slightly thicker than the strips 7. The plates 8 and the spacers 9 are assembled on a transverse spindle 30 which passes through them all.

Les lamelles 7 sont identiques dans leur forme générale rectangulaire, et offrent chacune un côté rectiligne 7a affleurant librement entre les plaquettes 8 dans un plan commun parallèle à la direction 6. Chacun de ces côtés 7a est entaillé d'une encoche 10 de forme triangulaire, à laquelle est donnée l'une de deux positions déterminées sur la longueur de la lamelle, desorte que la série d'encoches 10 que comporte l'ensemble de lamelles 7 est disposée suivant un code binaire défini par les positions respectives des encoches successives lorsque les lamelles sont en positions de repos (figure 1 ).The lamellae 7 are identical in their generally rectangular shape, and each offer a rectilinear side 7a freely flush between the plates 8 in a common plane parallel to the direction 6. Each of these sides 7a is notched with a notch 10 of triangular shape, to which one of two determined positions is given along the length of the strip, so that the series of notches 10 that the set of strips 7 comprises is arranged according to a binary code defined by the respective positions of the successive notches when the slats are in rest positions (Figure 1).

Entre l'ensemble de lamelles 7 et la tige 2 est monté un palpeur 11 constitué par une pièce de tôle profilée pouvant pivoter autour d'un axe défini par deux oreilles latérales 11 a engagées dans des fentes 12 qui s'étendent dans deux parois opposées d'un châssis 31 intérieur au boîtier 1 parallèlement à la direction 6, et offrant, sur un bord 11 c situé du côté opposé à l'axe de pivotement précité, une arête rectiligne 11 b appliquée contre les côtés 7a à encoche 10 des lamelles 7 par un ressort à lame 13 de faible puissance (figures 2a à 2d). L'arête 11 b du palpeur 11 est, comme son axe de pivotement, parallèle au plan des côtés 7a des lamelles 7 et perpendiculaire à la direction 6 de déplacement de la tige 2 (et des lamelles 7).Between the set of blades 7 and the rod 2 is mounted a feeler 11 consisting of a piece of profiled sheet metal which can pivot around an axis defined by two lateral ears 11 a engaged in slots 12 which extend in two opposite walls of a chassis 31 inside the housing 1 parallel to the direction 6, and offering, on an edge 11 c situated on the side opposite the aforementioned pivot axis, a rectilinear edge 11 b applied against the sides 7a with a notch 10 of the strips 7 by a low-power leaf spring 13 (FIGS. 2a to 2d). The edge 11b of the probe 11 is, like its pivot axis, parallel to the plane of the sides 7a of the strips 7 and perpendicular to the direction 6 of movement of the rod 2 (and of the strips 7).

La fente 4 d'introduction de la clé 3 est située en regard des extrémités 7b alignées des plaquettes 7 juxtaposées. Elle se prolonge à l'intérieur de l'ensemble que forment ces plaquettes par une série de fentes 14 pratiquées dans les plaquettes de guidage 8, ces fentes recevant la clé 3 introduite dans la serrure par la fente d'entrée 4 et, plus précisément, le bord antérieur 3a de la clé, lequel comporte un codage représenté par des découpures faisant apparaître des creux 15 et des dents 16 qui se succèdent suivant un code déterminé. Le nombre de positions binaires prévues sur le bord codé 3a est choisi de façon à obtenir un très grand nombre de combinaisons possibles; par exemple, 32 positions binaires fournissent plusieurs milliards de combinaisons différentes.The key insertion slot 4 is located opposite the aligned ends 7b of the juxtaposed plates 7. It extends inside the assembly formed by these plates by a series of slots 14 made in the guide plates 8, these slots receiving the key 3 introduced into the lock by the entry slot 4 and, more precisely , the front edge 3a of the key, which comprises a coding represented by cutouts showing hollows 15 and teeth 16 which follow one another according to a determined code. The number of binary positions provided on the coded edge 3a is chosen so as to obtain a very large number of possible combinations; for example, 32 bit positions provide several billion different combinations.

Lorsqu'on enfonce dans la serrure la clé 3, celle-ci fait se déplacer longitudinalement chacune des lamelles 7 suivant la direction 6 d'une quantité déterminée, respectivement grande ou petite, selon qu'elle est attaquée par une dent 16 ou par un creux 15 du bord antérieur 3a de la clé. Lorsque le code de la clé correspond au code de positionnement des encoches 10, celles-ci sont amenées à s'aligner et peuvent alors recevoir l'arête rectiligne 11 b du palpeur 11, qui s'y engage sous l'action du ressort à lame 13 (figure 2b).When the key 3 is pressed into the lock, the latter causes each of the strips 7 to move longitudinally in the direction 6 by a determined quantity, respectively large or small, depending on whether it is attacked by a tooth 16 or by a hollow 15 of the front edge 3a of the key. When the key code corresponds to the positioning code of the notches 10, they are brought into alignment and can then receive the rectilinear edge 11b of the feeler 11, which engages therein under the action of the spring at blade 13 (Figure 2b).

La clé 3 étant enfoncée plus avant dans la serrure, les lamelles 7 se déplacent toutes ensemble sous la poussée de la clé, entraînant dans leur mouvement de translation le palpeur 11 en prise par son arête 11 b avec les encoches 10 alignées. Le déplacement du palpeur 11 n'est pas entravé par les plaquettes de guidage 8, qui comportent de grandes encoches 17 dont la longueur couvre toute la course qu'exécutent les encoches 10 des lamelles 7 lors du déplacement d'ensemble de celles-ci durant leur course complémentaire faisant suite à leurs course initiale de positionnement de leurs encoches.The key 3 being pressed further into the lock, the blades 7 move all together under the push of the key, causing in their translational movement the probe 11 engaged by its edge 11 b with the notches 10 aligned. The movement of the feeler 11 is not hindered by the guide plates 8, which have large notches 17 whose length covers the entire stroke which the notches 10 of the strips 7 execute during the overall movement of the latter during their complementary course following their initial course of positioning their notches.

La tige 2 est couplée en translation au palpeur par un étrier 18 qui est soudé et offre à ses extrémités des boutonnières 19 par où passent des ergots 20 solidaires du palpeur 11. Ce mode de couplage à la tige 2 ne gêne en rien les mouvements de basculement du palpeur.The rod 2 is coupled in translation to the probe by a stirrup 18 which is welded and offers at its ends buttonholes 19 through which pass pins 20 integral with the probe 11. This mode of coupling to the rod 2 does not hinder the movements of tilting of the probe.

Ainsi, lorsque le palpeur 11 est entraîné en translation par les encoches 10 alignées des lamelles 7, il entraîne à son tour la tige 2 jusqu'à une position de fin de course (figure 2c) où le pêne 2a qui la termine a quitté la gâche, assurant la décondamnation de l'élément tel qu'une porte sur lequel est montée la serrure. En même temps, les lamelles 7, ou tout au moins celles qui correspondent à des dents 16 de la clé 3, repoussent une large palette basculante 21, embrassant tout l'ensemble des lamelles 7, qui pivote autour d'un axe 22 fixe, perpendiculaire au plan des lamelles 7, à l'encontre de la force d'un ressort de rappel 23. C'est grâce à ces ressort que la palette 21 ramène en position initiale de repos (figure 2a) l'ensemble des lamelles 7 lors du retrait de la clé 3, l'arête 11 b du palpeur échappant alors aux encoches 10 en remontant le long de l'un de leurs flancs, auquel est donnée à cet effet une certaine inclinaison, l'autre flanc étant perpendiculaire à la direction 6. D'une manière générale, il convient que, comme représenté, le bord 11 c portant l'arête 11 b offre, par rapport au plan des côtés à encoche 7a des lamelles 7, une obliquité propre à favoriser l'échappement du palpeur 11 hors des encoches 10 dans la phase de retour au repos des lamelles.Thus, when the probe 11 is driven in translation by the aligned notches 10 of the strips 7, it in turn drives the rod 2 to a limit position (Figure 2c) where the bolt 2a which terminates it has left the strike plate, unlocking the element such as a door on which the lock is mounted. At the same time, the strips 7, or at least those which correspond to teeth 16 of the key 3, repel a large tilting pallet 21, embracing the whole set of strips 7, which pivots around a fixed axis 22, perpendicular to the plane of the slats 7, against the force of a return spring 23. It is thanks to these springs that the pallet 21 returns to the initial rest position (FIG. 2a) all of the slats 7 during withdrawal of the key 3, the edge 11b of the probe then escaping from the notches 10 by going up along one of their flanks, to which a certain inclination is given for this purpose, the other flank being perpendicular to the direction 6. In general, it should be that, as shown, the edge 11 c carrying the edge 11 b offers, relative to the plane of the notched sides 7a of the strips 7, an obliquity suitable for promoting the escape of the probe. 11 out of the notches 10 in the return to rest phase of the strips.

Lorsqu'une personne mal intentionnée cherche à faire fonctionner la serrure avec une clé non conforme 3', l'introduction de cette clé ne produit pas la mise en alignement des encoches 10 des lamelles 7 (figure 2d). La fausse clé repousse toutefois ces dernières, tout comme la clé authentique 3, mais sans entraîner le palpeur 11, qui, n'ayant pas basculé dans les encoches alignés, reste retenu par butée d'une pièce 24, qu'il comporte en saillie, contre un ergot 25 fixe, solidaire du boîtier 1, de sorte que la tige 2 n'est pas actionnée.When a malicious person seeks to operate the lock with a non-conforming key 3 ′, the introduction of this key does not bring the notches 10 of the strips 7 into alignment (FIG. 2d). The false key, however, repels the latter, just like the authentic key 3, but without driving the probe 11, which, having not tilted in the aligned notches, remains retained by the abutment of a part 24, which it projects , against a fixed lug 25, integral with the housing 1, so that the rod 2 is not actuated.

Le fait que le palpeur 11 n'accompagne alors pas les lamelles 7 dans leur déplacement d'ensemble est détecté par un petit interrupteur 26 monté sur le palpeur et possédant un téton de commande 26a actionné par un bras coudé 27 pivotant autour d'une articulation 28. L'extrémité de ce bras coopère avec la palette 21, qui, en basculant, peut le faire pivoter à l'encontre de la force d'un ressort de rappel 29 assurant une pression permanente sur le téton d'actionnement 26a de l'interrupteur 26.The fact that the probe 11 does not then accompany the lamellae 7 in their overall displacement is detected by a small switch 26 mounted on the probe and having a control pin 26a actuated by a bent arm 27 pivoting around a joint 28. The end of this arm cooperates with the pallet 21, which, by tilting, can rotate it against the force of a return spring 29 ensuring permanent pressure on the actuating pin 26a of the switch 26.

Lorsque la mauvaise clé 3' est introduite dans la serrure, les lamelles 7 font basculer la palette 21, qui fait pivoter le bras 27 par rapport à l'interrupteur 26 en l'écartant de celui-ci (figure 2d) de sorte que la pression sur le téton 26a disparaît et que l'interrupteur 26 fonctionne, signalant de toute manière appropriée, par fermeture d'un circuit électrique, la tentative d'ouverture illicite de la serrure.When the wrong key 3 'is introduced into the lock, the blades 7 tilt the pallet 21, which rotates the arm 27 relative to the switch 26 away from it (Figure 2d) so that the pressure on the pin 26a disappears and that the switch 26 operates, signaling in any appropriate manner, by closing an electrical circuit, the attempt to unlawfully open the lock.

Par contre, lorsque c'est la clé authentique 3 qui est utilisée, il n'y a pas de mouvement relatif entre le palpeur 11 et l'ensemble des lamelles 7, donc pas davantage entre l'interrupteur 26 et son bras d'actionnement 27 (cf figures 2b et 2c), de sorte que l'interrupteur ne fonctionne pas et qu'aucune alarme n'est déclenchée.On the other hand, when the authentic key 3 is used, there is no relative movement between the probe 11 and the set of blades 7, therefore no more between the switch 26 and its actuating arm. 27 (see Figures 2b and 2c), so that the switch does not work and that no alarm is triggered.

On notera qu'il est possible de modifier, en cas de besoin, le code affecté à la serrure: il suffit d'ouvrir le boîtier et de changer l'ordre et/ou le type des lamelles 7 de l'ensemble d'identification. Par ailleurs, le choix d'un code binaire dans l'exemple décrit n'est nullement limitatif.It will be noted that it is possible to modify, if necessary, the code assigned to the lock: it suffices to open the casing and to change the order and / or the type of strips 7 of the identification assembly . Furthermore, the choice of a binary code in the example described is in no way limiting.

La serrure représentée à la figure 3 comprend, comme la serrure de la figure 1, dans un boîtier 1, un ensemble de lamelles d'identification 7 en forme de rectangle allongé, comportant, sur leur côté longitudinal 7a faisant face au palpeur mobile 11, une encoche de codage 10. Chacune des encoches peut occuper l'une ou l'autre de deux positions prédéterminées sur la longueur du côté 7a, de sorte que la série d'encoches 10 se trouve disposée suivant un code binaire propre à la serrure lorsque les lamelles 7 sont en position de repos. Le palpeur 11 possède ici encore une paire d'oreilles 11a engagées dans des fentes 12 pratiquées, parallèlement à la direction longitudinale 6 des lamelles 7, dans deux parois 31 parallèles intérieures au boîtier 1.The lock shown in FIG. 3 comprises, like the lock in FIG. 1, in a housing 1, a set of identification strips 7 in the form of an elongated rectangle, comprising, on their longitudinal side 7a facing the movable probe 11, a coding notch 10. Each of the notches can occupy one or the other of two predetermined positions along the length of the side 7a, so that the series of notches 10 is arranged according to a binary code specific to the lock when the slats 7 are in the rest position. Here, the feeler 11 again has a pair of ears 11a engaged in slots 12 made, parallel to the longitudinal direction 6 of the lamellae 7, in two parallel walls 31 inside the housing 1.

On remarque toutefois que les lamelles 7 de la présente forme d'exécution ont une longueur réduite presque de moitié: elles ne se prolongent que peu au delà de leur encoche 10. En outre, les entretoises 9 ont été supprimées, les lamelles 7 glissant maintenant directement sur le fond 1 a du boîtier 1, et les plaquettes sérapatrices 8 font place à des entretoises oblongues 108 dont le pas est déterminé par emboîtement, à leurs extrémités - dotées chacune d'une encoche - dans les crans de crémaillères 132, 133 fixées transversalement entre les parois 31.Note, however, that the strips 7 of this embodiment have a length reduced almost by half: they only extend a little beyond their notch 10. In addition, the spacers 9 have been removed, the strips 7 now sliding directly on the bottom 1a of the housing 1, and the therapeutic plates 8 give way to oblong spacers 108 whose pitch is determined by interlocking, at their ends - each provided with a notch - in the notches of racks 132, 133 fixed transversely between the walls 31.

Mais la principale différence réside dans l'adjonction d'un ensemble de pièces pivotantes 134 pour attaquer les lamelles 7 et les faire coulisser sous l'action d'une clé plate introduite dans la serrure. Les pièces 134 sont des pièces de renvoi d'angle identiques, montées indépendamment sur un axe de pivotement 135 commun; elles sont plates, d'épaisseur sensiblement égale à celle des lamelles 7, et à chacune de ces dernières est associée une pièce 134 située dans un même plan. Le pas des pièces 134 est maintenu égal à celui des lamelles 7 d'une part par des entretoises 136 emboîtées dans les crans d'une crémaillère 137 et traversées par l'axe 135, et d'autre part par les entretoises 108 dont les extrémités voisines de la crémaillère 132 passent entre des bras 134a appartenant aux pièces 134, par lesquels celles-ci attaquent les extrémités 7b des lamelles 7. Chaque pièce 134 comporte un second bras 134b orienté sensiblement à angle droit par rapport au bras 134a et doté d'une encoche 134c de réception de la clé.But the main difference lies in the addition of a set of pivoting parts 134 to attack the slats 7 and make them slide under the action of a flat key inserted into the lock. The parts 134 are identical angle reference parts, independently mounted on a common pivot axis 135; they are flat, of thickness substantially equal to that of the lamellae 7, and to each of the latter is associated a part 134 situated in the same plane. The pitch of the pieces 134 is maintained equal to that of the lamellae 7 on the one hand by spacers 136 fitted into the notches of a rack 137 and crossed by the axis 135, and on the other hand by the spacers 108 whose ends neighbors of the rack 132 pass between arms 134a belonging to the pieces 134, by which these attack the ends 7b of the strips 7. Each piece 134 has a second arm 134b oriented substantially at right angles to the arm 134a and provided with a notch 134c for receiving the key.

On notera également que la palette basculante 21 de rappel au repos des lamelles 7 est remplacée par une barre transversale 121, pouvant se déplacer en translation suivant la direction 6 dans des premières parties 138a de fentes de guidage 138 pratiquées dans les parois 31. La barre 121 est sollicitée vers l'ensemble de lamelles 7 au moyen d'un étrier pivotant 139 à rappel élastique. Cet étrier comprend une tige transversale 139a engagée dans des encoches 140 des parois 31 et repliée à ses extrémités pour former des bras 139b qui peuvent pivoter dans des intervalles 142 séparant les parois 31 et le boîtier 1, autour d'un axe matérialisé par la tige 139a, sous l'action d'au moins un ressort 141 enroulé autour d'une extrémité de la tige 139 et attaché par des extrémités radiales respectivement au bras 139b et à la paroi 31 qui lui correspondent.It will also be noted that the tilting pallet 21 for resting the blades 7 at rest is replaced by a transverse bar 121, which can move in translation in the direction 6 in the first parts 138a of guide slots 138 formed in the walls 31. The bar 121 is biased towards the set of blades 7 by means of a pivoting stirrup 139 with elastic return. This stirrup comprises a transverse rod 139a engaged in notches 140 of the walls 31 and folded at its ends to form arms 139b which can pivot in intervals 142 separating the walls 31 and the housing 1, around an axis materialized by the rod 139a, under the action of at least one spring 141 wound around one end of the rod 139 and attached by radial ends respectively to the arm 139b and to the wall 31 which correspond to it.

Afin d'assurer une action sans dissymétrie des lamelles 7 sur la barre 121 de façon que celle-ci se déplace dans tous les cas parallèlement à elle-même, il est fait en sorte qu'il y ait toujours, lors de la course de positionnement des lamelles 7, avancement de deux lamelles situées respectivement aux extrémités de l'ensemble d'identification. Autrement dit, les bords codés des clés 3 comportent systématiquement une dent 16 dans la région de chacune de leurs extrémités.In order to ensure an action without asymmetry of the lamellae 7 on the bar 121 so that the latter in any case moves parallel to itself, it is ensured that there is always, during the stroke of positioning of the strips 7, advancement of two strips located respectively at the ends of the identification assembly. In other words, the coded edges of the keys 3 systematically include a tooth 16 in the region of each of their ends.

Le palpeur 11 possède, aux extrémités de son arête d'entraînement 11 b par laquelle il peut venir en prise avec les encoches 10 alignées des lamelles 7, une seconde paire d'oreilles latérales 1 l qui sont respectivement engagées dans les fenters 138. La première partie 138a de celles-ci, longue et parallèle à la direction 6, se prolonge à son extrémité voisine de l'ensemble de lamelles 7, par une deuxième partie 138b plus courte, orientée perpendiculairement, puis par une troisième partie 138c, encore plus courte, parallèle à la première partie 138a (de sorte que chaque fente 138 a la forme d'un J). Par ailleurs, l'arête 11 b du palpeur 11 est maintenue appliquée contre les côtés 7a de l'ensemble de lamelles 7 par une paire de ressorts à lame 113 situés dans les intervalles 142, fixés aux oreilles 11 c et prenant appui sur les extrémités de l'axe 135 qui débordent dans ces intervalles.The probe 11 has, at the ends of its drive edge 11 b by which it can come into engagement with the notches 10 aligned with the strips 7, a second pair of lateral ears 1 l which are respectively engaged in the fenters 138. The first part 138a of these, long and parallel to direction 6, is extended at its end close to the set of blades 7, by a second shorter part 138b, oriented perpendicularly, then by a third part 138c, even more short, parallel to the first part 138a (so that each slot 138 has the shape of a J). Furthermore, the edge 11b of the feeler 11 is kept applied against the sides 7a of the set of lamellae 7 by a pair of leaf springs 113 located in the intervals 142, fixed to the ears 11 c and bearing on the ends of the axis 135 which overflow in these intervals.

Pour faire fonctionner la serrure, on peut introduire la clé 3 soit, comme dans le cas de la serrure de la figure 1, parallèlement à la direction 6, la clé agissant alors sur les lamelles 7 par l'intermédiaire des bras 134a des pièces 134, soit perpendiculairement à la direction 6, la clé agissant alors par l'intermédiaire des bras 134b et 134a des pièces 134. Dans les deux cas, ces dernières pivotent autour de l'axe 135, parcourant des angles plus ou moins grands suivant que chacune est attaquée par une dent ou par un creux du bord codé 3a de la clé 3, de sorte que le code de la clé est transmis à l'ensemble de lamelles 7 par l'ensemble de pièces pivotantes 134. Dans le premier cas d'introduction de la clé, celle-ci est guidée entre les entretoises 108 et des becs 136a que comportent les entretoises 136 à proximité de la fente d'entrée 4 correspondante du boîtier 1 de la serrure. Dans le second cas où la clé 3 est introduite par une seconde fente 144 pratiquée dans le couvercle 1 b du boîtier 1, ce sont les encoches 134c des bras 134b qui guident la clé durant le mouvement de pivotement des pièces 134. En pratique, la fente 144 est accessible du côté extérieur au local défendu par la serrure, tandis que la fente 4 est accessible du côté intérieur.To operate the lock, one can introduce the key 3 or, as in the case of the lock of Figure 1, parallel to the direction 6, the key then acting on the slats 7 through the arms 134a of the parts 134 , or perpendicular to direction 6, the key then acting through the arms 134b and 134a of the parts 134. In both cases, the latter pivot around the axis 135, by running more or less large angles depending on whether each is attacked by a tooth or by a hollow in the coded edge 3a of the key 3, so that the code of the key is transmitted to the set of blades 7 by the set of pivoting parts 134. In the first case of introduction of the key, the latter is guided between the spacers 108 and nozzles 136a which the spacers 136 have near the corresponding entry slot 4 of the housing 1 of the lock. In the second case where the key 3 is introduced through a second slot 144 made in the cover 1b of the housing 1, it is the notches 134c of the arms 134b which guide the key during the pivoting movement of the parts 134. In practice, the slot 144 is accessible from the outside on the premises defended by the lock, while slot 4 is accessible from the inside.

En dehors de cette double possibilité d'introduction de la clé, le fonctionnement de la serrure du présent exemple est le même que celui de la serrure de la figure 1. Par enfoncement progressif de la clé, on fait s'aligner les encoches 10 des lamelles 7, la barre 121 étanttoutd'abord seule repoussée par les lamelles 7 correspondant aux dents de la clé. Le palpeur 11 bascule alors dans les encoches alignées, puis est entraîné lui aussi en translation par les lamelles 7 accomplissant leur course complémentaire, guidé par sa première paire d'oreilles 11 a dans les fentes 12 et par sa seconde paire d'oreilles 11 c dans la première partie 138a des fentes 138. Le palpeur repousse alors l'organe de commande du pêne, qui est constitué par une tige coulissante 102 accouplée au palpeur par simple enfourchement.Apart from this double possibility of introducing the key, the operation of the lock of the present example is the same as that of the lock of FIG. 1. By progressive depressing of the key, the notches 10 of the strips 7, the bar 121 being first of all only pushed back by the strips 7 corresponding to the teeth of the key. The probe 11 then switches over in the aligned notches, then is also driven in translation by the lamellae 7 completing their complementary travel, guided by its first pair of ears 11a in the slots 12 and by its second pair of ears 11c in the first part 138a of the slots 138. The feeler then pushes the control member of the bolt, which is constituted by a sliding rod 102 coupled to the feeler by simple engagement.

Si la clé introduite dans la serrure ne comporte pas le bon code, son enfoncement ne cause le déplacement que de la barre 121, le palpeur restant immobile, retenu par ses oreilles 11 c dans la deuxième partie 138b des fentes 138. Dès la fin de la course qui aurait produit l'alignement des encoches si la clé utilisée avait été authentique, la barre 121 rencontre une tige souple 127 qui actionne, via une palette articulée 143, un mini-interrupteur 126 fixé sur le palpeur 11, qui déclanche une alarme. Le bord des encoches 10 par lequel celles-ci sont susceptibles d'entraîner le palpeur 11 lors de leur course complémentaire est pourvu d'un petit chanfrein 1 Oa qui assure un coulissement sans entrave, sous la poussée d'une fausse clé, de chaque lamelle 7 par rapport au palpeur 11, bloqué par ses oreilles 11 c dans la deuxième partie 138b des fentes 138, même si l'arête d'entraînement 11 b du palpeur était quelque peu déformée ou décalée localement au point de pénétrer légèrement dans une ou plusieurs encoches 10 alors que toutes les encoches ne sont pas alignées. Cette disposition assure qu'aucune fausse clé ne sera arrêtée intempestivement dans sa course d'enfoncement, et causera donc en toute certitude l'actionnement du mini-interrupteur d'alarme 126.If the key inserted into the lock does not have the correct code, pressing it in only causes displacement of the bar 121, the probe remaining stationary, retained by its ears 11 c in the second part 138b of the slots 138. As soon as the end of the race which would have produced the alignment of the notches if the key used had been authentic, the bar 121 meets a flexible rod 127 which actuates, via an articulated pallet 143, a mini-switch 126 fixed on the probe 11, which triggers an alarm . The edge of the notches 10 by which these are capable of driving the probe 11 during their complementary stroke is provided with a small chamfer 1 Oa which ensures unimpeded sliding, under the pressure of a false key, of each lamella 7 relative to the probe 11, blocked by its ears 11 c in the second part 138b of the slots 138, even if the drive edge 11b of the probe was somewhat deformed or offset locally to the point of slightly penetrating one or more several notches 10 while all the notches are not aligned. This provision ensures that no false key will be stopped unexpectedly in its driving stroke, and will therefore certainly cause actuation of the alarm mini-switch 126.

Comme on peut le voir sur les figures 3 et 4, les lamelles 7 comportent une encoche de codage non seulement sur leur côté longitudinal 7a tourné face au palpeur 11, mais sur leur côté opposé 7a' où est prévue une seconde encoche 10'. Les encoches 10 et 10' sont respectivement situées au voisinage des extrémités de chaque lamelle 7, mais à une distance différente, de sorte que l'une correspond à un 1 binaire et l'autre à un 0 binaire. L'une ou l'autre des encoches 10, 10' de chaque lamelle peut être mise en service à volonté par simple retournement de la lamelle dans son plan. Cette opération est aisée à accomplir, car les lamelles 7 ne sont maintenues en place contre le fond la du boîtier 1 que par leurs extrémités, savoir à une extrémité par le palpeur 11 et la barre 121 qui s'appuient élastiquement sur elles et, à l'autre extrémité, par des protubérances 145 que comportent les pièces 134, orientées sensiblement radialement par rapport à l'axe 135 et ne laissant aux lamelles 7 qu'un faible jeu pour s'écarter du fond 1 a. Par suite, après avoir ôté le couvercle 1 b, il suffit de soulever le palpeur 11 et de l'immobiliser en une position d'effacement où ses oreilles 11c sont logées et retenues dans la troisième partie 138c des fentes 138. Les lamelles 7 dont on désire inverser le codage binaire 0 ou 1 peuvent alors être retirées, retournées et remises en place sans que s'y opposent les protubérances 145 correspondantes.As can be seen in Figures 3 and 4, the slats 7 have a coding notch not only on their longitudinal side 7a facing the probe 11, but on their opposite side 7a 'where a second notch 10' is provided. The notches 10 and 10 'are respectively located in the vicinity of the ends of each lamella 7, but at a different distance, so that one corresponds to a binary 1 and the other to a binary 0. One or the other of the notches 10, 10 ′ of each strip can be put into service at will by simply turning the strip over in its plane. This operation is easy to accomplish, because the strips 7 are held in place against the bottom of the housing 1 only by their ends, namely at one end by the feeler 11 and the bar 121 which are resiliently supported on them and, at the other end, by protuberances 145 which the parts 134 comprise, oriented substantially radially with respect to the axis 135 and leaving the slats 7 only a slight clearance to move away from the bottom 1 a. Consequently, after having removed the cover 1b, it suffices to lift the probe 11 and to immobilize it in an erasing position where its ears 11c are housed and retained in the third part 138c of the slots 138. The strips 7 of which you want to reverse the binary coding 0 or 1 can then be removed, returned and replaced without opposing the corresponding protrusions 145.

Claims (22)

1. Lock comprising a member (2) for controlling a latch or bolt (2a) and a mechanism for actuating this member with the aid of a key (3) bearing a code, via a code identification assembly comprising plates (7) of generally substantially rectangular shape, of the same dimensions, juxtaposed in parallel with a determined pitch and slidably mobile in their longitudinal direction, each of these plates (7) comprising, on a substantially rectilinear longitudinal side (7a), a notch (10) cut at one of several determined locations along this side, the notched sides of all the plates being disposed substantially in the same plane perpendicular to the planes of the plates (7), so that, into these notches (10) brought into alignment by action of the key (3) on the plates (7) from their rest position, there may come into mesh, by a rectilinear drive edge (11b) that it comprises, a member (11) for coupling plates to the member (2) controlling the bolt, said coupling member (11) being adapted to transmit to said control member (2) the movement imprinted on the key (3), said lock being characterized by the fact thatthe coupling member is a sensing element or feeler (11) which is doubly mobile, in parallel to the sliding direction (6) of the plates (7) and substantially perpendicularly to the plane of the notched sides (7a) of the plates, said latter mobility affecting at least the drive edge (11b) that it comprises, which edge, being pressed against the assembly of the notched sides (7a) of the plates (7), is adapted to be engaged in the notches (10) as soon as they are aligned and then to couple the bolt control member (2) to the assembly of plates (7), such that, when introduced into the lock, the key (3) takes along the plates (7) which slide firstly in a stroke of positioning where their notches (10) come into alignment if the key (3) matches the lock, then in a complementary stroke where, if the feeler (11) has been able to come into mesh by its drive edge (11b) in the aligned notches (10) of the plates, the latter take along, via the feeler (11), the bolt control member (2) in the sliding direction (6) of the plates (7), in a way tending to place the bolt in position of opening, whereas means for returning the bolt control member (2) in opposite direction is provided to return it into closing position, said means, preferably, not enabling said member to be moved in the direction of opening.
2. Lock according to claim 1, characterized by the fact that stop means (24, 25; 138b) are provided, which prevent the feeier (11) from moving in the sliding direction (6) of the plates (7) as long as its drive edge (11 b) has not come into mesh in the aligned notches (10) of the plates (7).
3. Lock according to claim 1 or 2, characterized by the fact that the movement of the fee)er (11)substantially perpendicularly to the plane of the notched sides (7a) of the plates (7) consists in a pivoting movement about a pivoting axis oriented in parallel to this plane and perpendicularly to the sliding direction (6) of the plates (7), and movable in this direction.
4. Lock according to claim 3, characterized by the fact that the pivot axis of the feeler (11) is defined by a pair of lateral lugs (11 a) that it comprises and which are engaged in a pair of slots (12) made in fixed walls (31) of the lock in the sliding direction (6) of the plates, the ends of these slots determining the end positions of the feeler (11) in its displacements in said direction.
5. Lock according to claim 4, characterized by the fact that the feeler (11) comprises a second pair of lateral lugs (11c) located in the vicinity of its drive edge (11b) and engaged in a second pair of slots (138) made in said fixed walls (31), each of these latter slots comprising a first part (138a) extending in parallel to the sliding direction (6) of the plates (7) and a second part (138b), relatively short and oriented perpendicularly to this direction, the corresponding lug (11 c) of the second pair of the feeler being located in this second part (138b) when this latter abuts on the plates (7) while said plates are at rest and their notches (10) are not aligned.
6. Lock according to any one of claims 1 to 5, characterized by the fact that it is provided with an alarm device which compares the displacement of the bolt control member (2), or of the bolt itself, and that of the plates (7) and triggers off in the case of non-isplacement of said member or of the bolt during the complementary stroke of said plates.
7. Lock according to claim 6, characterized by the fact that the alarm device comprises a switch (26; 126) which is fixed to the feeler (11) or to the bolt control member (2) and may be actuated by at least one of the plates (7) during said complementary stroke.
8. Lock according to claim 7, characterized by the fact that the switch (126) is actuated via a mobile transverse bar (121) parallel to the plane of the notched sides (7a) of the plates (7) and perpendicular to the sliding direction (6) thereof, which may move in translation in this direction under the action of at least one of the plates (7) against an elastic return force, with the result that, upon withdrawal of the key (3), said bar (121) further ensures the return of plates (7) into rest position.
9. Lock according to any one of claims 1 to 8, characterized by the fact that the edge of the notch (10) of each plate (7), by which the drive edge (11 b) of the feeler (11) is capable of being attacked is joined by a bevel (1 Oa) to the longitudinal side (7a) of the plate (7) in which the notch is made.
10. Lock according to any one of claims 1 to 9, characterized by the fact that it operates with the aid of a flat key (3) comprising a front edge (3a) provided with cut-outs which show teeth (16) and hollows (15) succeeding one another in a determined coding combination, such that the key (3), introduced into the lock, is capable of selectively pushing, by said front edge (3a), the plates (7) of the identification assembly and of positioning them with their notches (10) aligned, then of causing them to execute their complementary stroke by which is exerted a direct thrust on the member (2) for controlling the bolt.
11. Lock according to claim 10, characterized by the fact that the cut-outs in the front edge of the key determine a binary coding, each plate (7) having its notch (10) located in one of two determined locations over its length.
12. Lock according to claim 10 or 11, charecter- ized by the fact that it is designed so that the key (3) directly attacks the plates (7) of the identification assembly in their longitudinal sliding direction (6).
13. Lock according to claim 10 or 11, characterized by the fact that upstream of the plates (7) of the identification assembly, there is disposed an assembly of pivoting bevel gear parts (134) via which the key (3) may actuate the plates (7) by being introduced into the lock in a direction different from the longitudinal direction (6) of the plates (7).
14. Lock according to claim 13, characterized by the fact that the bevel gear parts (134), which are identical, are mounted freely in juxtaposition on a common transverse pivot pin (135), and that each of these parts, associated with a respective plate (7), is formed by a small plate located in the plane of this plate and comprising a first arm (134a), substantially radial, capable of pushing the corresponding plate (7) and of thus actuating it in translation, and a second arm (134b) substantially radial, forming an angle with the first arm (134a) and capable of being attacked by the key (3) introduced into the lock in said different direction.
15. Lock according to claim 14, characterized by the fact that the arms (134a, b) of the bevel gear parts (134) are arranged so that said different direction of introduction of the key (3) is substantially perpendicular to the plane of the notched sides (7a) of the plates (7).
16. Locking according ro claim 14 or 15, characterized by the fact that the bevel gear parts (134) are maintained at the pitch of spacing of the plates by spacer members (136) interposed between said parts, which are engaged at at least one point of their periphery in notches of a transverse piece (137) in the form of a rack.
17. Lock according to any one of claims 1 to 16, characterized by the fact that between the plates (7) of the identification assembly are interposed oblong spacer members (108) engaged at their ends in the notches of transverse pieces (132, 133) in the form of a rack.
18. Lock according to any one of claims 1 to 17, characterized by the fact that the coding notch (10) which each plate (7) comprises on its longitudinal side (7a) facing the feeler (11) is located near its end opposite that (7b) attacked by the key (3).
19. Lock according to any one of claims 5 to 18, characterized by the fact that the second part ( 38b) of each of the slots (138) of said second pair of slots is continued by a third part (138c), of small length, oriented in parallel to the first part (138a).
20. Lock according to anyone of claims 1 to 19, characterized by the fact that with each plate (7) there is associated a stop (145) which prevents it from moving in its plane perpendicularly to its longitudinal direction (6) this stop being disposed in the vicinity of the end (7b) of the plate attacked by the key (3).
21. Lock according to claim 20, provided with bevel gear parts according to any one of claims 14 to 16, characterized by the fact that said stop is constituted by a projection (145) of the bevel gear part (134) associated with each plate (7).
22. Lock according to any one of claims 1 to 21, characterized by the fact that each plate (7) comprises a coding notch (10, 10') on each of its two longitudinal sides (7a, 7a'), these two notches having there, howerer, a different positioning.
EP86904208A 1985-07-05 1986-07-04 Lock Expired EP0231232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86904208T ATE39151T1 (en) 1985-07-05 1986-07-04 LOCK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8510354A FR2584444A1 (en) 1985-07-05 1985-07-05 NON-ROTATING FLAT KEY LOCK ACTING BY PUSH
FR8510354 1985-07-05

Publications (2)

Publication Number Publication Date
EP0231232A1 EP0231232A1 (en) 1987-08-12
EP0231232B1 true EP0231232B1 (en) 1988-12-07

Family

ID=9321027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904208A Expired EP0231232B1 (en) 1985-07-05 1986-07-04 Lock

Country Status (5)

Country Link
US (1) US4790160A (en)
EP (1) EP0231232B1 (en)
DE (1) DE3661364D1 (en)
FR (1) FR2584444A1 (en)
WO (1) WO1987000232A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610355B1 (en) * 1987-02-04 1989-06-09 Chateau Michel Marie LOCK WITH MODIFIABLE CODE WITH FLAT KEY MOVING BY PIVOTING SLIDES WITH NOTCHES
FR2615890B1 (en) * 1987-05-25 1989-09-22 Chateau Michel Marie CHANGEABLE CODE LOCK AND FALSE KEY DETECTOR
US5766939A (en) * 1989-05-05 1998-06-16 Baylor College Of Medicine Production of recombinant lactoferrin and lactoferrin polypeptides using CDNA sequences in various organisms
US5849881A (en) * 1989-05-05 1998-12-15 Baylor College Medicine Production of recombinant lactoferrin and lactoferrin polypeptides using cDNA sequences in various organisms
US6100054A (en) * 1989-05-05 2000-08-08 Baylor College Of Medicine Production for recombinant lactoferrin and lactoferrin polypeptides using DNA sequences in various organisms
US5189894A (en) * 1992-02-10 1993-03-02 Buck William M Quick opening, child-safe container with digital combination lock
US5630330A (en) * 1996-06-11 1997-05-20 Tigerex Enterprise Co., Ltd. Lock for diskette drive
US7793528B2 (en) * 2007-02-12 2010-09-14 Maples Stephen S Key-operated mechanical lock
CN110284766B (en) * 2019-06-27 2024-04-12 林喜禄 Spring-free idling lock head

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR597736A (en) * 1925-11-27
US1103897A (en) * 1913-04-29 1914-07-14 Waldon S Ball Lock.
GB238612A (en) * 1924-05-21 1925-08-21 David Hamburg Improvements in locks
GB243259A (en) * 1925-06-09 1925-11-26 Alfredo Matticoli An improved disengaging mechanism for locks
US2595267A (en) * 1943-11-23 1952-05-06 Julliard Maurice Etienne Combination lock
US3326024A (en) * 1963-08-02 1967-06-20 Dreyfus Frontal type lock

Also Published As

Publication number Publication date
DE3661364D1 (en) 1989-01-12
US4790160A (en) 1988-12-13
FR2584444A1 (en) 1987-01-09
EP0231232A1 (en) 1987-08-12
WO1987000232A1 (en) 1987-01-15

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